Keithley 2600a series, Reference Manual, Page: 164 / 696

9-8 Return to Section Topics 2600AS-901-01 Rev. B / September 2008
Section 9: Sweep Operation Series 2600A System SourceMeter® Instruments Reference Manual
When this sweep starts, the output will go to the start level (1V) and sweep through the
symmetrical log points.
To configure a logarithmic staircase sweep, use the following function:
smuX.trigger.source.logY
This function configures the source values the SMU will output when performing a logarithmic
sweep. After configuring the sweep you must also enable the source action by setting the following
attribute:
smuX.trigger.source.action
Example:
-- Sweep from 1 to 10V in 10 steps with an asymptote of 0V.
smua.trigger.source.logv(1, 10, 11, 0)
-- Enable the source action.
smua.trigger.source.action = smua.ENABLE
For more information, see
smuX.trigger.source.logY
.
List sweeps
Use a list sweep to configure a sweep with arbitrary steps. A measurement is made at each point
after source and measurement settling time.
To configure a list sweep, use the following function:
smuX.trigger.source.listY
This function configures the source values the SMU will output when performing a list sweep. After
configuring the sweep you must also enable the source action by setting the following attribute:
smuX.trigger.source.action
Example:
-- Sweep through 3V, 1V, 4V, 5V, and 2V.
smua.trigger.source.listv({3, 1, 4, 5, 2})
-- Enable the source action.
smua.trigger.source.action = smua.ENABLE
When the sweep is started, the output level goes to the first point in the sweep. The sweep will
continue through the steps in the order they were programmed.
Table 9-1
Logarithmic sweep points
Measure
point (N)
Source level (V)
Step
number (i)
Point 1
Point 2
Point 3
Point 4
Point 5 1
1.7783
3.1623
5.6234
10 0
1
2
3
4